Answer:
C
Step-by-step explanation:
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Answer:
The probability that the instrument does not fail in an 8-hour shift is 
The probability of at least 1 failure in a 24-hour day is 
Step-by-step explanation:
The probability distribution of a Poisson random variable X representing the number of successes occurring in a given time interval or a specified region of space is given by the formula:

Let X be the number of failures of a testing instrument.
We know that the mean
failures per hour.
(a) To find the probability that the instrument does not fail in an 8-hour shift, you need to:
For an 8-hour shift, the mean is 

(b) To find the probability of at least 1 failure in a 24-hour day, you need to:
For a 24-hour day, the mean is 

1,224 minutes.
75.20 minus 14 = 61.2
61.2 / 1,224minutes
A = ((B+b)*h)/2
A = ((6+4)*3)/2
A = 15
Answer:
Exact Form:
−4/11
Decimal Form:
−
0.36
Step-by-step explanation:
Subtract 5/11 from 9/11 to get your answer.
Simplify the expression.
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